Lubricating cup



March 15, 1927.

J. G. MUELLER ET AL LUBRICATING CUP Filed April 20, 1923 Patented Mar.15, 1927.

JoHN c.. MUELLER, CARLA. eRANzow, AND HENRY M. GRANzow, or DAYTON,orafo.

LUBRICATINGV CUP.

Application lcd April 20, 1923. Serial No. 633,40.

This invention relates to improvements in lubricating cups designed forapplication to journal bearings, particularly bearings so situated thatthey are subjected to vibration or arring, such as will occur' inautomobiles and other moving vehicles.

The general object we have in view is that of providing aii'air tig-litoil cup which wiil exclude atmospheric pressure and dust from thesurface of the oil within the Ycup and from which the oil will be fedtothe journal bearing through 4an oil passageway so restricted in lateraldimensions as that the oil will not iiow except for theJ effect of thevibrations and jarrings to which the cup is subjected. i

YV e have found in practice that such an oil passage restricted inlateral dimensions to VlO/lOOOths to l/lOOOths of an inch is efficientandeifective for the delivery of the oil from the shaking cup to thebearing.

There are. other features of our invention which are applicable to oilcups which may be denominated stationary as distinguished fromuvibrating or shaking cups, as will be explained hereinafter.

In the accompanying drawings: Fig. 1 is a sectional view of a bearing'and a journal therein, as also of our improved oil 3o cup;

Fig. 2 is a like vertical sectional view; Fig. 3 is a transversesectional view taken on the line 3 3 of Fig. 2.

The numeral 1 designates a bearing carryor lubricant orifice 3 with athreaded recess fi to receive the threaded end of a lug 5 upon which ismounted the oil cup. V l This plug is shown in two forms, one in Fi 1and the other in Fig. 2. In the former figure the plug terminates at ornear the bottom of the oil cup. In the latter figure it extends upwardthrough the bottom of the cup and well into the body of the cup, saytwo-thirds of its height, as shown at 6 in Fig. 2. This extension hasorifices 7 through which the oil passes from the cup into the oilchannel within the plug and the extension. y

As before stated the bearing or place where the cup will be used and forwhich it is especially adapted` and designed is subject to vibrations orjars which are necessarily transmitted to the cup through the plug.Because of this condition of use-this vibration or shaking of the cup-Wereduce and ing a revolving journal 2 and having an oil use an oilchannel 8 of restricted lateral di nicnsions, preferably from`10/1000ths to 15/1000ths of an inch. Sucha restricted channel, becauseof the vibration or shaking, we find will deliver the lubricant Vfromthe cup to the journal mounted in the bearing in a most efficientaiideffective ,way-without interruption andyet in such slowl degree aswill prevent flooding, or waste of the lubri.. 4

cant.

extending up into the bodyof the cup, while in the form shown in F ig;2, the plug being In the form shown in Fig. 1v this restricted t channel8 passes through the plugwithout extended well into the cup, thechannel-.is-

likewise so extended. The orifices .7 before alluded to permit the oilin thecup to enter the channe The other features of ,our invention, now

about to. be described, while applicable to cups which are placed onstationary bearings or bearings where there is no vibration 1 orshaking,` may be used on the cups when applied to the vibratingy orshaking bearings.VV These featuresV are the cup 9 fitted onthe.

stem 10 of the plug 5 with'an intervening washer 11 to prevent leakageof the lubricant, as shown in Fig. 1, or with an intervening filling ofcork, as shown at 12 in Fig. 2, in which form the bottom of the cup isextended upward, as shown at 13, to form a chamber within which the corkis placed. The cork forms a packing around the neck ofthe plug andprevents leakage of the lubricant. Y

In both the forms shown the cup is removable from the plug. In Fig. 1 itis held on the plug by a yielding prong 14 which'` posed of the circularwire band 16 seated inV i i i the lower inturned edges of the cup and ofthe arms 17 which tend to spring inward to seat themselves in the groove18 of the plug. By springing the arms apart and out of the groove 18 thecup may be lifted off of the 'i plug.

In ig. we have shown an outer casing 19 which is spaced away from thecup to leave an intervening air chamber which may.

be filled witha non-conductor of heat, as inykdcatedgat;20,f,thefpurposey beingto protect the cup from changes in thetemperature so lthat the oil or lubricant will notpbe subject tosuchvariations.,

The casing and Y normally. fits'aroundthe stein 7.

Y The lubricant -w-orksitsway fronrthe cup 9 down the one or morerestricted channels tonthe .Ibearingu @he lwall f ofthe bore in theplugy '5w forms a' closure forf the channels ,27

,sofas to leavein= effect, long but otherwise r mmutejchannelsfor theworking of" thelubricantefrom .the cupfon down to the journal ylvvithinthey bearing asA the cup undergoes vibrations; p

The vsubject matter of this applicationy is a division ooun originalapplication, Ser.

No; 473,616, `ledlVlay4 31st, 1921, in allrespeots -savef'as rela-testothe restricted size of 'the lubricant channel which, in the presentinstance, {functions by reason ofl the viA brat-lons er jarslmparted tothe lubricant cup frornlthe bea-ring on which it 1s mounted.

Y the cup being connected, together, as indicated at 21, and arhinge-yOtherwise than as tothis'latterffeature the subject matter of thisapplicationis` carved out of` our other application in response to theofficial requirement for` divisicm.-

Having thus fully described our invention, what we claim as new anddesire to secure by Letters Patent, is

1'.. Av'lubricatingidevicecomprising an airtight oil cup having adischarge orifice at its base, a yplughaving anzoilzpassagetherethroughadapted to .receive :oil from .the cup and? deliver it `to a bearing,and. aihingecQI-lnection between the plug andY cup bv which the plugisdetaohablyl secured in place: in the cup. v

2.' A lubricating rdevice comprsingfadouble walled agirtightscupvhavingl 4a .space bevtween .such walls,nf a nonoonducting mlit'eiralinsuchispace, aplug detachably lttedin the lower end off thecup andkhavingn an interi-OI' passageand an exterior .threadgthe latter adaptedto have connection with bearings, and. a detachable connection bet-weon.the

plug and the cup. consisting of a spring,

member and hinge construction, the spring' member to-:holdthe plug inposltlon in` the cup and the hinge constructionto permit the plug topbeswung out ot the lower end of the cup.

lin-testimony whereof, we alix our signaf tures.y Y

f J @HN (fl. MUELLER.

CARL A. GRANZQW; Y HENRYM GRANZOW.`

